On April 22nd, Dr. Zhou Yi returned to our group to visit the teachers and students. Dr. Zhou was a Ph.D. student supervised by Prof. Xi and Prof. Zhang. His doctoral research focused on the C=N bond regioselective cleavage of carbodiimides, and the synthesis and reactivity study of zinc-containing macrocycles. Currently, Dr. Zhou works at Bellen Chemistry. During his visit, he toured our lab under the guidance of Prof. Zhang. Finally, we took a group photo and expressed our gratitude to Dr. Zhou Yi for visiting our group!